Theory of 'Smart' Cities
Questioned by Readers

Here are some of the reader comments on the Feb. 26 column on cities. Thanks to all who wrote. Some comments have been edited. You can contact me at capital@wsj.com.

* * *

Bert Zauderer writes:

You really hit the nail on the head with Philadelphia. Here the focus is on large "development" projects along the waterfront and in center city. That creates a lot of store-clerk jobs to attract out-of-towners to see the...